diff options
Diffstat (limited to 'arch/sparc64/kernel/iommu_common.h')
| -rw-r--r-- | arch/sparc64/kernel/iommu_common.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h index 0713bd58499c..f3575a614fa2 100644 --- a/arch/sparc64/kernel/iommu_common.h +++ b/arch/sparc64/kernel/iommu_common.h @@ -12,6 +12,7 @@ #include <linux/mm.h> #include <linux/scatterlist.h> #include <linux/device.h> +#include <linux/iommu-helper.h> #include <asm/iommu.h> #include <asm/scatterlist.h> @@ -45,17 +46,16 @@ static inline unsigned long iommu_num_pages(unsigned long vaddr, return npages; } -static inline unsigned long calc_npages(struct scatterlist *sglist, int nelems) +static inline int is_span_boundary(unsigned long entry, + unsigned long shift, + unsigned long boundary_size, + struct scatterlist *outs, + struct scatterlist *sg) { - unsigned long i, npages = 0; - struct scatterlist *sg; + unsigned long paddr = SG_ENT_PHYS_ADDRESS(outs); + int nr = iommu_num_pages(paddr, outs->dma_length + sg->length); - for_each_sg(sglist, sg, nelems, i) { - unsigned long paddr = SG_ENT_PHYS_ADDRESS(sg); - npages += iommu_num_pages(paddr, sg->length); - } - - return npages; + return iommu_is_span_boundary(entry, nr, shift, boundary_size); } extern unsigned long iommu_range_alloc(struct device *dev, |